“It's disgusting out here,” said Jill Belson. Belson's home is nearby and she said the stench was unbearable. “It's not very pleasant at all,” Belson said.

Police began receiving 911 calls about the sewage around 7 a.m. When emergency crews arrived, they quickly figured it out the mess did not come from the sewage plant down the street. Investigators said it was highly likely someone emptied their septic tank into the water and drove off.

“It is upsetting,” said Ted Jankowski, Stamford’s Public Safety Director.

The city has blocked off access to the Czescik Marina until next Friday. Jankowski said the sewage would not kill the fish, but warned against fishing in the area.

“You can get sick from raw sewage so you don't want to eat anything you’re catching,” Jankowski added.

The tide is expected to take the sewage into Long Island Sound in the next few days.

“It will remedy itself via nature,” Jankowski said.

Authorities are now focused on tracking down whoever is responsible.

“We'll prosecute them to fullest extent of the law when we do find them,” Jankowski said.

It’s possible surveillance cameras at the Marina caught the crime. Police were working to get the video.

Anyone with information on the incident is asked to call Stamford Police.